import { type MathNode } from 'mathjs';
import type { Result } from './interface.js';
import type { State } from './state.js';
/** 获取全局函数的名字 */
export declare function globalFnName(state: State, fnName: string): string;
/** 获取 symbol name */
export declare function symbolName(node: MathNode): string | undefined;
/** 转换为 mirascript 符号 */
export declare function migrateSymbolName(name: string, local: boolean): string;
/** 获取 constant value */
export declare function constantValue(node: MathNode): number | string | boolean | null | undefined;
/** 添加转换错误 */
export declare function unsupportedNode(state: State, node: MathNode, err?: string): Result;
/** 可能是矩阵时报错 */
export declare function scalar(op: string, state: State, re: Result): Result;
/** 比较字符串 */
export declare function equalText(state: State, op: '==' | '!=', l: MathNode, r: MathNode): Result;
/** 计算长度 */
export declare function len(state: State, obj: Result): Result;
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